userns: Make create_new_namespaces take a user_ns parameter

[firefly-linux-kernel-4.4.55.git] / kernel / utsname.c

diff --git a/kernel/utsname.c b/kernel/utsname.c
index 4a9362f9325d60e5809db9e48ffb73b6ce2f756a..fdc619eb61ef7497fa7a841277cdfd6e874ecbe3 100644 (file)
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -32,7 +32,7 @@ static struct uts_namespace *create_uts_ns(void)
  * @old_ns: namespace to clone
  * Return NULL on error (failure to kmalloc), new ns otherwise
  */
-static struct uts_namespace *clone_uts_ns(struct task_struct *tsk,
+static struct uts_namespace *clone_uts_ns(struct user_namespace *user_ns,
                                          struct uts_namespace *old_ns)
 {
        struct uts_namespace *ns;
@@ -43,7 +43,7 @@ static struct uts_namespace *clone_uts_ns(struct task_struct *tsk,
 
        down_read(&uts_sem);
        memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
-       ns->user_ns = get_user_ns(task_cred_xxx(tsk, user_ns));
+       ns->user_ns = get_user_ns(user_ns);
        up_read(&uts_sem);
        return ns;
 }
@@ -55,9 +55,8 @@ static struct uts_namespace *clone_uts_ns(struct task_struct *tsk,
  * versa.
  */
 struct uts_namespace *copy_utsname(unsigned long flags,
-                                  struct task_struct *tsk)
+       struct user_namespace *user_ns, struct uts_namespace *old_ns)
 {
-       struct uts_namespace *old_ns = tsk->nsproxy->uts_ns;
        struct uts_namespace *new_ns;
 
        BUG_ON(!old_ns);
@@ -66,7 +65,7 @@ struct uts_namespace *copy_utsname(unsigned long flags,
        if (!(flags & CLONE_NEWUTS))
                return old_ns;
 
-       new_ns = clone_uts_ns(tsk, old_ns);
+       new_ns = clone_uts_ns(user_ns, old_ns);
 
        put_uts_ns(old_ns);
        return new_ns;